Display screen or portion thereof with an animated computer generated falling dialog



FIG. 1 is the first image in a sequence for a display screen or portion thereof with an animated computer generated falling dialog showing an embodiment of the new design;

FIG. 2 is the second image thereof;

FIG. 3 is the third image thereof;

FIG. 4 is the fourth image thereof;

FIG. 5 is the fifth image thereof;

FIG. 6 is the sixth image thereof;

FIG. 7 is the seventh image thereof;

FIG. 8 is the eighth image thereof;

FIG. 9 is the ninth image thereof;

FIG. 10 is the tenth image thereof;

FIG. 11 is the eleventh image thereof;

FIG. 12 is the twelfth image thereof;

FIG. 13 is the first image in a sequence for a display screen or portion thereof with an animated computer generated falling dialog showing another embodiment of the new design;

FIG. 14 is the second image thereof;

FIG. 15 is the third image thereof;

FIG. 16 is the fourth image thereof;

FIG. 17 is the fifth image thereof;

FIG. 18 is the sixth image thereof;

FIG. 19 is the seventh image thereof;

FIG. 20 is the eighth image thereof;

FIG. 21 is the ninth image thereof;

FIG. 22 is the tenth image thereof;

FIG. 23 is the eleventh image thereof; and,

FIG. 24 is the twelfth image thereof.

The appearance of the animated computer generated falling dialog sequentially transitions between the images shown in FIGS. 1-12 in one embodiment and between the images shown in FIGS. 13-24 in another embodiment. The process or period in which one image transitions to another forms no part of the claimed design.

The broken line showing of a display screen or portion thereof, text and other elements are for environmental purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with an animated computer generated falling dialog, as shown and described. 